I have a 2004 2500hd 2wd with the torsion keys front shock extenders and 2 blocks in the rear. Can i get the 325/60/18 to fit w/o to many rubbing problems? I will be running an 18x9 wheel. What would be my best offset? I can get +18 from XD. i heard the -12 would be hard on the wheel bearings as well would rub more. Any pics of 2wd with this combo? Thanks for the help.

Well, that size is technically 33.4" tall so it wont be hard at all. BS shouldnt matter much, you may have to trim a tad of plastic though.

So The Extra Width Should Not Be A Problem.

Na, do a search. There are alot of people running aftermarket wheels.